package controller;

import jakarta.servlet.http.HttpSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import entity.SysRole;
import entity.SysUser;
import service.SysRoleService;
import service.SysUserService;
import service.UploadService;
import utils.Constants;
import utils.Page;

import java.util.*;

@Controller
@RequestMapping("/main/user")
public class SysUserController extends BaseController {
    private static final Logger LOGGER =
            LoggerFactory.getLogger(SysUserController.class);
    @Autowired
    private UploadService uploadService;
    @Autowired
    private SysUserService sysUserService;
    @Autowired
    private SysRoleService sysRoleService;

    @RequestMapping("/page")
    public String page(Model model, SysUser condition,
                       @RequestParam(value = "pageNo", defaultValue = "1") Integer pageNo,
                       @RequestParam(value = "pageSize", defaultValue = "5") Integer pageSize
            , HttpSession httpSession) {
        Page<SysUser> page = null;
        try {
            // 查询用户的分页信息
            page = sysUserService.findPage(condition, pageNo, pageSize);
            // 查询所有的角色信息
            List<SysRole> roleList = sysRoleService.findAll();
            // 将分页数据、角色列表和查询条件设置到模型数据中
            model.addAttribute("pageInfo", page);
            model.addAttribute("roleList", roleList);
            model.addAttribute("condition", condition);
        } catch (Exception e) {
            LOGGER.error("SysUserController 中的 page 方法执行发生错误。 ", e);
            throw new RuntimeException(e);
        }
        return "user/page";
    }


    /**
     * 跳转到save.jsp页面的接口
     */
    @GetMapping("/save")
    public String toSave(Model model) {
        List<SysRole> roleList = null;
        try {
            roleList = sysRoleService.findAll();
            // 有角色下拉框需要数据
            model.addAttribute("roleList", roleList);
            // 回显数据时需要 sysUser，这里给个空对象避免出错
            model.addAttribute("sysUser", new SysUser());
        } catch (Exception e) {
            LOGGER.error("SysUserController中的toSave方法执行发生错误。", e);
            throw new RuntimeException(e);
        }
        return "user/save";
    }

    /**
     * 保存数据接口
     */
    @PostMapping("/save")
    public String doSave(SysUser sysUser,
                         @RequestParam("idPic") MultipartFile idPic,
                         @RequestParam("workPic") MultipartFile workPic) {

        // 允许的上传图片后缀
        String[] allowImageExt = {"jpg", "jpeg", "png", "gif", "bmp"};

        try {
            // 上传证件照
            String idPicPath = uploadService.uploadFile(idPic, allowImageExt);
            sysUser.setIdPicPath(idPicPath);
            // 上传工作照
            String workPicPath = uploadService.uploadFile(workPic, allowImageExt);
            sysUser.setWorkPicPath(workPicPath);

            // 通过父类的 session 方法获取登录用户，由于泛型自动转换无需强转
            SysUser loginUser = session(Constants.SESSION_USER);
            boolean ok = false;
            if (sysUser.getId() == null) {
                // 如果是添加用户，关联创建用户为当前登陆用户
                sysUser.setCreatedUserId(loginUser.getId());
                sysUser.setCreatedTime(new Date());
                ok = sysUserService.save(sysUser);
            } else {
                // 如果是修改用户，关联修改用户为当前登陆用户
                sysUser.setUpdatedUserId(loginUser.getId());
                sysUser.setUpdatedTime(new Date());
                ok = sysUserService.update(sysUser);
            }
            if (ok) {
                // 保存成功，跳回列表页面
                return redirect("/main/user/page");
            }


        } catch (Exception e) {
            LOGGER.error("SysUserController 中的 doSave 方法执行发生错误。 ", e);
            throw new RuntimeException(e);
        }
        return "user/save";
    }

    @GetMapping("/view/{id}")
    public String view(@PathVariable("id") Long id, Model model) {
        SysUser sysUser = null;
        try {
            sysUser = sysUserService.findById(id);
            model.addAttribute("sysUser", sysUser);
        } catch (Exception e) {
            LOGGER.error("SysUserController 中的 view 方法执行发生错误。 ", e);
            throw new RuntimeException(e);
        }
        return "user/view";
    }

    /**
     * 查询用户信息并跳转修改页（共用 save.jsp)
     */
    @GetMapping("/edit")
    public String toEdit(@RequestParam("id") Long id, Model model) {
        SysUser sysUser = null;
        List<SysRole> roleList = null;
        try {
            sysUser = sysUserService.findById(id);
            roleList = sysRoleService.findAll();
            // 有角色下拉框需要数据
            model.addAttribute("roleList", roleList);
            // 回显数据时需要 sysUser，这里给个空对象避免出错
            model.addAttribute("sysUser", sysUser);
        } catch (Exception e) {
            LOGGER.error("SysUserController 中的 toEdit 方法执行发生错误。 ", e);
            throw new RuntimeException(e);
        }
        return "user/save";
    }

    @DeleteMapping("/del/{id}")
    @ResponseBody
    public Object del(@PathVariable("id") Integer id, Model model) {
        Map<String, Object> map = new HashMap<>();
        try {
            int num = sysUserService.delete(id);
            if (num > 0) {
                map.put("code", 200);
                map.put("msg", "删除成功");
            }
        } catch (Exception e) {
            LOGGER.error("SysUserController 中的 view 方法执行发生错误。 ", e);
            throw new RuntimeException(e);
        }
        return map;
    }

    @ResponseBody
    @GetMapping("/accountExist")
    public Object accountExist(@RequestParam("account") String account) {
        Map<String, Object> map = new HashMap<>();
        try {
            // 角色编号不可为空
            if (StringUtils.isEmpty(account)) {
                map.put("exist", 0);
            } else {
                SysUser sysUser = sysUserService.findByAccount(account);
                if (null != sysUser) {
                    map.put("exist", 1);
                } else {
                    map.put("exist", 0);
                }
            }
        } catch (Exception e) {
            LOGGER.error("SysUserController中的accountExists方法执行发生错误", e);
            map.put("error", "出现异常，请联系管理员处理！ ");
        }
        return map;
    }

    @ResponseBody
    @GetMapping("/{id}/view")
    public Object ajaxView(@PathVariable("id") Long id) {
        Map<String, Object> map = new HashMap<>();
        try {
            SysUser sysUser = sysUserService.findById(id);
            if (sysUser != null) {
                map.put("code", 200);
                map.put("data", sysUser);
            } else {
                map.put("code", 500);
            }
        } catch (Exception e) {
            LOGGER.error("SysUserController中的ajaxView方法执行发生错误。 ", e);
            map.put("code", 500);
        }
        return map;
    }



}
